Spring-wheel for vehicles.



W. H. SCRYMGOUR.

SPRING WHEEL FOR VEHICLES.

APPLICATION TILED $EPT. 30, 1907.

Patented Sept. 22, 1908.

2 SHEETS-SHEET 1.-

W. H. SORYMGOUR.- SPRING WHEEL FOR VEHICLES.

7 APPLICATION FILED snmso, 1907.

,a899,332 Patented Sept. .22, 1908;

' 2 SHEETS-SHEET z.

WILLIAM HARRINGTON SGRYMGOUR, OF LONDON, ENGLAND.

SPRING-WHEEL FOR VEHICLES.

Specification of Letters Patent.

Patented Sept. 22, 1908.

Application filed September 30, 1907. Serial No. 395,191.

To all whom it may concern:

Be it known that 1, WILLIAM HARRINGTON SoRYMGoUR, a subject of the Kingof Great Britain and Ireland, and resident of 13 Lovells Court,Paternoster Row, London, county of London, England, have inventedcertain new and useful Improvements in Spring- Wheels for Vehicles, ofwhich the following is a specification.

This invention has for its object to so construct and arrange the wheelthat the periphery thereof shall be capable of giving at any part wherethe same 1s in contact with the road surface and to return to itsoriginal shape in such a manner that the wheel will possess the sameelasticity as one fitted with a pneumatic tire and that though strongenough to support any given load it will give a check, absorb and lessenthe vibration transmitted to the axle by shocks set up by contact withthe road surface. For this purpose the wheel consists of two disksnearly the diameter of the finished wheel bolted together near the periheries and revolving on the axle in the usua manner. Mounted on the axleso as to be fast therewith, so as not to revolve and between the disk,is a block or shoe which carries an elliptical spring, the shorter axisof which is nearly e ual to the radius of the disks and of a widtsufficient to have clearance of said disks when the same are revolvinground the spring which is made strong enough to carry any given loadwithout appreciable deflection.

Between the disks and at the periphery thereof are fitted a number ofblocks or shoes in such a manner that when in position they somewhatresemble the teeth of a ratchet wheel, but each block or shoe isdetached and pivotally mounted by one end in the disks, the other endbeing free to swing so as to shut in between the disks.

The free ends of the blocks or shoes are provided with rollers which,when the wheel is in motion, are brought down one after another underthe beforementioned elli tical s ring so that for a fractional spacetime the load is sup orted by the spring through each of the bloc s orshoes in turn and always through one or more of them.

To retain oil or grease between the disks and to exclude dust the sameare provided with any suitable arrangement of packing or paneling.

In order that the said invention may be the more readily understoodreference is to had to the following description and accompanyingdrawings in which Figures land 2 are art sectional elevations, Fig. 2being a sectlon on line a, a Fig. 1. Figs. 3 and 4 sections on lines I),b; c, 0 respectively of Fig. 1.

Like numerals of reference indicate corresponding parts.

In said drawings 1 is the axle of suitable desi n, and 2, 2 the diskswhich are free to revo ve on the same, held together by bolts 3 anddistance pieces 4 near the periphery so as to run clear of the spring 5.The spaces 6 between the spokes 7 of the disks are packed or fitted witha panel or panels 7 so as to exclude dust and the like and retain oil orgrease. The boxes 8 are provided with loose bushes 9 fitting the axle 1so that the disks will revolve either on the axle or on the bushes.

The elliptical spring which is preferably constructed of steel leaves inthe ordinary manner is fixed to the block or shoe 10 by clips 11, saidblock or shoe 10 being fixed to the axle 1 by key 12 so that the spring5 cannot revolve on the axle, while the disks freely revolve thereon.

To prevent the wheel coming off even if the key works loose the outerdisk is provided with an annular stop working against the back of itsbush 9.

Between the disks 2, 2 are fitted the shoes 13, so arranged that whentogether and in position they form a flexible tread or tire capable ofyielding at any given number of points and where in contact with theroad surface supported by spring 5. The shoes 13 are preferably formedhollow and triangular in shape pivoted at one end 14 to the disks 2 bybolts 15, the other end being provided with rollers 16Figs. 1 and4-adapted to engage with the under surface of the spring 5. The lowerpart 17 of each shoe is provided with a tread 18 of any suitablematerial, and further to exclude dust and assist in keeping in the oilor grease a packing or wiper 19 of brass or other suitable material towipe on the front 20 of said block is kept in position by means ofspring 21-Figs. 1 and 3-attached to the distance pieces 4.

Having now described my invention what I claim as new and desire tosecure by Letters Patent of the United States is 1. In a vehicle wheelcom rising disks mounted free to rotate on an ax e and bolted together,the combination therewith of blocks or shoes pivotally mounted in saiddisks near the periphery thereof, an elliptical sprin fixedly carried bysaid axle to be engage with by the wheels of said block on the minoraxis of said spring to cause said blocks to have engagement W1th theroad surface forda fractional space of time to support the loa 2. In avehicle Wheel comprising disks mounted free to rotate on an axle andbolted together, the combination therewith of blocks or shoes pivotallymounted in said disks near the periphery thereof, Wheels carried by saidblocks or shoes, an elliptical spring fixedly carried by said axle to beengaged With by said Wheels on the minor axis of said spring to causesaid blocks to, have engagement with the road surface for a fractionalspace of time and means suchas packing or panels to exclude dust Whileretaining oil or grease.

3. In Wheels built up of disks bolted tothe wheel to support the oadthrough each of the blocks or shoes in turn and always through one ormore of them.

In testimony whereof I have affixed my signature in presence of tWoWitnesses.

WILLIAM HARRINGTON SCRYMGOUR. Witnesses:

RoBT. HUNTER, F. W. KING.

